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Finding the Third Proportional to 14,874 and 21,786

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Solution

The third proportional to 14,874 and 21,786 is: 31,910.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,874 : 21,786 = 21,786 : x
  2. Step 2: Convert to fraction form
    14,874/21,786 = 21,786/x
  3. Step 3: Cross multiply
    14,874x = 21,786 × 21,786
  4. Step 4: Simplify right side
    14,874x = 474,629,796
  5. Step 5: Solve for x
    x = 474,629,796/14,874
  6. Step 6: Final answer
    x = 31,910.03

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.